PRRX1 overexpression in MDA-MB-231 breast cancer cells
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ABSTRACT:
PROVIDER: PRJNA574460 | ENA |
REPOSITORIES: ENA
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Project description:To investigate downstream targets of PRRX1, we used MDA-MB-231 (MDA231) breast cancer cells which express low level of PRRX1 to generate a stable cell line where human PRRX1 was ectopically overexpressed (MDA231-PRRX1), and performed comparative microarray analyses. Interestingly, we found many miRNAs that were upregulated in MDA231-PRRX1 cells.
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Project description:ADAR1 overexpression in MDA-MB-231 cells
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Project description:Dicer, RNase III endonuclease, is an essential enzyme in miRNA biogenesis that regulates target gene expression, and it has been reported that aberrant expressions of Dicer associate with the clinical outcomes of patients in various cancers. To explore the miRNA differencial expression regulated by Dicer in MDA-MB-231/E1A cells, the microarray profiling analysis was employed to conduct differentially expressed miRNAs in stable MDA-MB-231/vector, MDA-MB-231/E1A, and MDA-MB-231/E1A/shDicer cells.
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Project description:Identification of genes that are involved in self-seeding by comparing gene expression profiles between parental MDA-MB-231 cells and seeder cells (MDA-231-S1a and S1b) 2 replicates from each sample (parental MDA-MB-231, MDA-MB-231 S1a and MDA-MB-231 S1b) were analyzed
2010-04-07 | E-GEOD-18833 | biostudies-arrayexpress
Project description:Dicer, RNase III endonuclease, is an essential enzyme in miRNA biogenesis that regulates target gene expression, and it has been reported that aberrant expressions of Dicer associate with the clinical outcomes of patients in various cancers. To explore the miRNA differencial expression regulated by Dicer in MDA-MB-231/E1A cells, the microarray profiling analysis was employed to conduct differentially expressed miRNAs in stable MDA-MB-231/vector, MDA-MB-231/E1A, and MDA-MB-231/E1A/shDicer cells. The four groups including vector control, E1A-expressing and Dicer knockdown in E1A-expressing MDA-MB-231 cells were harvested and RNA were isolated. Two independent experiments were performed for each group.
2016-01-16 | E-GEOD-76924 | biostudies-arrayexpress
Project description:To investigate the function ARL11 in the regulation of PARPi resistance, we established MDA-MB-231 cells overexpressing ARL11. We then performed gene expression profiling analysis using data obtained from RNA-seq of ARL11 overexpression or vector control MDA-MB-231 cells treated with or without Olaparib.
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Project description:LRP-1 (low-density lipoprotein receptor-related protein-1) receptor is a multifunctional endocytosis receptor that is part of the LDL receptor family. Due to its capacity to control the pericellular level of various growth factors and proteases, LRP-1 plays a crucial role in controlling the dynamics of the membrane proteome. LRP-1 overexpression in breast cancer, prompted us to take an interest in its involvement in tumor progression. An RNA interference strategy in MDA-MB-231 line was used, based on shRNA stable expression. In addition to integrated experimental strategies (in vitro and in vivo) through combined approaches of biochemistry, molecular biology, cell biology, multimodal preclinical imaging, proteomics allowed us to compare shLRP-1 MDA-MB-231 tumor conditioned media to shCtrl MDA-MB-231 tumor conditioned media in order to identify secreted molecular targets modulate by LRP-1 repression and thus provide a better understanding of its regulatory action within the TNBC microenvironment.
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Project description:FBP1 overexpression in MDA-MB-231 breast cancer cells
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Project description:Abstract: RNA editing has emerged as novel mechanisms involved in cancer progression. Despite the phenotypic implications of ADAR in several cancer models, the role of ADAR on DNA damage response (DDR) and proliferation in breast cancer (BC) has not been fully addressed. To evaluate the effect of ADAR expression, MDA-MB-231 cells were transduced (MOI:200) with commercial pre-package adenoviral particles coding for ADARp110 or transduced (MOI:200) with eGFP control adenovirus. 16 h after transduction media was changed and RNA were extracted 48 h after transduction. ADARp110 overexpression produces a significant increase in transcripts related with cell cycle and proliferative pathways, in addition to other pathways related to IL10 signaling, among others. In other hand 657 sites significantly increase their editing in MDA-MB-231 OV cells at site level comparison. Conversely, transcripts involved in Generic Transcription, cell cycle, HIV life Cycle related pathways and Apoptosis suffer an increased editing ratio, suggesting that ADAR activity could be is in the regulation of the targets that bears significant changes in their editing pattern after ADAR manipulation
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Project description:Identification of genes that are involved in self-seeding by comparing gene expression profiles between parental MDA-MB-231 cells and seeder cells (MDA-231-S1a and S1b)
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